TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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WD/Wiring Diagrams, page 220

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Wiring Diagrams — MK4 Supra Wiring Diagrams, page 220
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Page text (OCR transcript)
COMBINATION METER

SERVICE HINTS

B 2  BRAKE FLUID LEVEL WARNING SW
1–2 :  CLOSED WITH FLOAT DOWN

P 5  PARKING BRAKE SW
1–GROUND :  CLOSED WITH PARKING BRAKE LEVER PULLED UP

O 2  OIL PRESSURE SW
1–GROUND :  CLOSED WITH OIL PRESSURE ABOVE APPROX. 20 KPA (2.8 PSI, 0.2 KG/CM²)

E 4  ENGINE COOLANT TEMP. SENDER (WATER TEMP. SENDER)
1–GROUND :  APPROX. 160–240    (50˚C, 122˚F)
           :  APPROX. 17.1–20.4    (120˚C, 288˚F)

E 7  ENGINE OIL LEVEL SENSOR
1–2 :  CLOSED WITH FLOAT UP AND ENGINE OIL TEMP. AT BELOW APPROX. 55˚C (131˚F)
       OPEN WITH FLOAT DOWN AND ENGINE OIL TEMP. AT BELOW APPROX. 60˚C (140˚F)

F14  FUEL SENDER
1–2 :  APPROX. 3    AT FUEL FULL
     :  APPROX. 110    AT FUEL EMPTY

C10(B), C12(A)  COMBINATION METER
(B) 9–GROUND :  APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
(A)16–GROUND :  APPROX. 12 VOLTS WITH IGNITION SW AT ST POSITION AND SHIFT LEVER AT P OR N POSITION (A/T)
                12 VOLTS WITH IGNITION SW AT ST POSITION AND CLUTCH PEDAL DEPRESSED (M/T)
(A) 8–GROUND :  ALWAYS CONTINUOUS
(A)11–GROUND :  ALWAYS CONTINUOUS
(A) 2–GROUND :  ALWAYS APPROX. 12 VOLTS

○ : PARTS LOCATION

CODE    SEE PAGE    CODE    SEE PAGE    CODE    SEE PAGE
B 2    24 (2JZ–GTE)    E 4    26 (2JZ–GE)    O 2    27 (2JZ–GE)
       26 (2JZ–GE)         24 (2JZ–GTE)           25 (2JZ–GTE)
C 9    28              E 7    26 (2JZ–GE)    P 2    27 (2JZ–GE)
C10  B  28             E10    29             P 5    29
C11  C  28             F14    30             T 5    29
C12  A  28              I 4    27             T 6    29
D 6    28               J 1    29
E 4    24 (2JZ–GTE)    O 2    25 (2JZ–GTE)   V10    25 (2JZ–GTE)
                                              27 (2JZ–GE)

○ : RELAY BLOCKS

CODE    SEE PAGE    RELAY BLOCKS (RELAY BLOCK LOCATION)
2       22          R/B NO. 2 (ENGINE COMPARTMENT LEFT)
4       23          R/B NO. 4 (LEFT KICK PANEL)

○ : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR

CODE    SEE PAGE    JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1B      20          ENGINE ROOM MAIN WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1E      20          INSTRUMENT PANEL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1G
1H
1I      20          COWL WIRE AND J/B NO. 1  (LEFT KICK PANEL)
1J
1K

□ : CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

CODE    SEE PAGE    JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IB1
IB2     36          ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL)
IE1     36          INSTRUMENT PANEL WIRE AND FLOOR NO. 2 WIRE (LEFT KICK PANEL)
IF1
IF2     36          INSTRUMENT PANEL WIRE AND COWL WIRE (INSTRUMENT PANEL REINFORCEMENT LH)
IF3     36          INSTRUMENT PANEL WIRE AND COWL WIRE (RIGHT KICK PANEL)
II1     38          ENGINE WIRE AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
IJ2     38          ENGINE WIRE AND COWL WIRE (RIGHT KICK PANEL)
BP1     40          FUEL GAUGE WIRE AND FLOOR NO. 2 WIRE (LUGGAGE ROOM FRONT LH)

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